will it be a risk if a 12 hours old small cut or scraped skin not bleeding at the time when came in contact with possible hep c blood? is 12 hours enough time for body to create a barrier on the wound to prevent hep c/hiv from entering the body?
One route could be an open wound. An open wound would be one that is wet and weeping. Plus the hep c infected blood has to enter the blood stream not just contact an old abrasion
How is Hepatitis C spread?
Hepatitis C is usually spread when blood from a person infected with the Hepatitis C virus enters the body of someone who is not infected. Today, most people become infected with the Hepatitis C virus by sharing needles or other equipment to inject drugs. Before 1992, when widespread screening of the blood supply began in the United States, Hepatitis C was also commonly spread through blood transfusions and organ transplants.
People can become infected with the Hepatitis C virus during such activities as
Sharing needles, syringes, or other equipment to inject drugs
Needlestick injuries in health care settings
Being born to a mother who has Hepatitis C
Less commonly, a person can also get Hepatitis C virus infection through
Sharing personal care items that may have come in contact with another person’s blood, such as razors or toothbrushes
Having sexual contact with a person infected with the Hepatitis C virus
Even if a medical worker experienced an accidental needle stick involving a patient with known hep c the odds of transmission is only about 1.8% so you can I am sue appreciate how much lower you odds are in comparison.